Windmill



(No Model.)

2 SheetsSheet 1. Z. P. TOWNSEND.

'WINDMILL.

No. 399,171. v Patented Mar. 5, 1889.

1 Iii 1 WITNESSES Q41 @vflwwb m7' %M (No Model.) 2 SheetsSheet 2. Z. P. TOWNSEND.

WINDMILL. No. 399,171. Patented Mar. 5, 1889.

WITNESSES I INVEfigH UNITED STATES PATENT Prion,

ZACHARIAH PADDOCK TOXVNSEND, OF SAUQUOIT, NFAV YORK.

WINDMILL.

SPECIFICATION forming part of Letters Patent No. 399,171, dated March 5, 1889.

Application filed August 18, 1888. Serial No. 283,088. (No model) To aZZ whom it may concern.-

Be it known that I, Zncnanmn Pnnnocn TOWNSEND, a citizen of the United States, and a resident of Sauquoit, in the county of Oneida and State of New York, have invented certain new and useful Improvements in \Yindmills; and I do hereby declare that the following is liange of which fits and turns within a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use i provided with the bearings K, and which is the same.

This invention relates to autoinal ic regulating windmills.

The object is to produce a device which shall he of such construction that the blades of the wheel may be automatically feathered withou t the en'iploymeut of any intricate mechanism to produce that result, but which shall be simple of construction, ctlieient and durable in use, and comparatively inexpensive of production.

W'ith these objects in view the invention consists in the combination, with the bearingtrame, of a hollow shaft journaled thereon and carrying at one end the wheel having the feathering blades, and a shaft passing through the said hollow shaft and connected to the feathering blades at one end and at the other end to a weight by suitable mechanism, the said shafts turning in unison with each other. Furthermore, in the combination,with the hollow wheel-shaft provided at one end with an eccentric, of an annular band encircling said eccentric and connected to thepump-rod; and, finally, in the various novel'details of construction whereby its objects are attained.

In the accompanying drawings, in which the same letters of reference indicate corresponding parts in the several figures, Figure 1- ard.

the flange of plate of the base of the platform, which in con junction forma turn-table. The intermediate portion of the hollow standard is provided with diametrically-opposite ears I, which turn within the flange of the plate secured to the elevated portion of the platform, thus furnishin a stead y bcarin for the hollow standard.

J designates the bcaring-lramc, which is secured to the upper end of thehollowstand- To the rear end of this bearingframe is secured the vane L, of the well-known construction. A hollow shaft, L, i journaled in the hearings of the frame, and has secured to its outer end the metallic hub M, formed with the radiating threc-side sockets N, which are open at their forward portions for the insertion of the radiating arms 0, through which pass the bolts P, which then pass through the rear side of the sockets and are suitably secured in place, either by heading them or screwing nuts upon their ends. This construction will permit of the arms being readily removed when desired without removing the hub from the end of the shaft. To the outer ends of each of the radiating arms is secured a perforated lug, Q, in which is journaled one end of a rod, R, having its other end journaled in a bearing, S, in the intermediate portion of the adjacent arm. The featheringblades T are each provided with bearing-in gs II, which are secured thereto eccentrica-ll y or near the forward edge of the blade, and these lugs are mounted upon and turn with the rods R.

A shaft, passes through the hollow wheelshaft, and has secured upon its outer end the disk XV, formed with radiating perforated ears X, and the inner end of this shaft V is reduced and headed, as shown a-tY, and turns with its headed and reduced end in a coup ling, Z, formed at its rear end with perforated cars A, between which is pivoted a link, B. The rear end of the hollow shaft is provided with an eccentric, C, the annular periphery of which is grooved, so as to enable it to receive and retain in place an annular collar, D, formed of two pieces clamped together. Secured to two diametrical opposite ears of this collar are two pitmen,which project downward and are secured to the cross-head E, the ends of which project through two longitudinal slots, F, in the sides of the hollow standard. To this cross-head is secured the pump-rod G, which is connected with its lower end to the pumping mechanism.

To the link 13' are pivoted the upper ends of a double bell-crank, II, having the cross-rod I, turning in a l')earing-arm, J, secured to the side of the hollow standard. This bearing arm is formed with an aperture, K, through which the cross-rod l is lubricated. Secured to the lower ends of this double bell.- crank are links L", to the lower ends of which are secured the weighted ring M, which encircles the hollow standard. Secured to the perforated ears of the disk XV are rods N, which are cranked at each end. These rods are journaled with their rear ends in ears 0', secured to the blades near their rear edges.

The operation of the invention is as follows: As the wheel revolves it causes the eccentric to also revolve, which works the pump-rod.

If the wind blows too hard, it will cause the 1 blades, which are pivoted eccentrieally to the radiating arms, to feather, and which causes the revolutions of the wheel to decrease. \Vhen the wheel feathers, it causes the shaft V to slide rearward and the weighted ring to be raised, and as soon as the wind decreases this weighted ring will cause the wheel to assume its normal position. It will be seen that by journaling the blades eecentrically the rear port-ions thereof will offer a greater surface to the wind than that portion forward of the journals, and that the wind will, therefore, when too strong, cause these blades to feather, as above stated.

From the foregoing description, taken in connection with the accompanying drawings, the operation and advantages of the inven tion will be readily seen without requiring an extended explanation.

Having thus described my invention, I claim and desire to secure by Letters Patent of the United States The windmill consisting of ahollow shaft carrying a hub provided with a series. of radial arms, the blades connected to said arms by means of rods, upon which they are pivoted, the rod of each blade connecting with the outer end of one arm and to the intermediate portion of the adjacent arm, a second shaft passing through the aforesaid hollow shaft and provided upon one end with a disk connected by cranked rods to said blades near the rear edges of the latter, and the double bell-crank connected with the opposite end of the said second shaft and to a weight, substantially as and for the purpose set forth.

In testimony that I claim the foregoing as my own I have hereunto affixed my signature in presence of two witnesses.

ZACHARIAII PADDOOK TOWNSEND.

\Vitnesses: V

GEORGE MoULD, \VILLIAM F. MoULD. 

